CakePHP中的單元測試助手

Question

我創建了一個名爲AdvHtmlHelper的新助手。

class AdvHtmlHelper extends AppHelper { 

    var $helpers = array('Form'); 

    function textbox($fieldName, $options = array()) { 
     $output = $this->Form->input($fieldName, array('before' => '<div class="outerdiv"><div class="leftfields"><div class="txt1">', 'between' => '</div><div class="colon"> : </div></div><div class="rightfields"><div class="input">')); 
     $output .= '</div></div></div><div class="space"></div>'; 
     return $output; 
    } 
} 

我創建了一個測試爲它

App::import('Helper', 'AdvHtml'); 
App::import('Helper', 'Form'); 
App::import('Helper', 'Html'); 
App::import('Core', 'View'); 

class AdvHtmlTest extends CakeTestCase { 
    private $advHtml = null; 

    //Here we instantiate our helper, and all other helpers we need. 
    public function startTest() { 
     $this->advHtml = new AdvHtmlHelper(); 
     $this->advHtml->Form = new FormHelper(); 
     $this->advHtml->Form->Html = new HtmlHelper(); 
     $this->view = new View($this->Controller); 
    } 

    //testing textbox() function. 
    public function testTextbox() { 
     $result = '<div class="input text"><div class="outerdiv"><div class="leftfields"><div class="txt1"><label for="new">New</label></div><div class="colon"> : </div></div><div class="rightfields"><div class="input"><input name="data[new]" type="text" id="new" /></div></div></div></div><div class="space"></div>'; 
     $this->assertEqual($result, $this->advHtml->textbox('new')); 
    } 
} 

我收到以下錯誤，當我嘗試運行測試。幫助代碼的第10行是對錶單助手的調用。

Fatal error: Call to a member function input() on a non-object in /opt/lampp/htdocs/mali/app/views/helpers/adv_html.php

如何測試助手調用另一個助手？

on line 10

編輯：回答。更新了我的最終測試用例以供參考。

Answer 1

你必須設置窗體助手爲advHtml助手的屬性設置的助手時：

public function startTest() { 
    $this->advHtml = new AdvHtmlHelper(); 
    $this->advHtml->Form = new FormHelper(); 
}